Help on Bolt Circle

[deestrong71]

I have 5 Lug Wheels with Disc Brakes. I cant seem to find a definite answer on my Bolt Circle.
I'm reading 5x5, 5x4.5 etc.

Is there a way to determine exactly ?




72' C10 SB

[Hawghauler]

If they are 5 lug, Chevy trucks are always 5 on 5. This means 5" from the furthest apart studs. In this case, every other stud has a gap of 5 inches between them. G.M. large cars, impala, etc. are also 5 on 5. I think the rest are 5 on 4.75. Six lugs are, I believe, 6 on 5.5.

[463]

http://www.roadkillcustoms.com/hot-r...#axzz2g3IlIvo3
This will help you

[Hawghauler]

I guess I should clarify that a bit. It's 5 inches center to center on the furthest stud from the one you start with. That can be measured on the wheels as 5 inches from the center of one lug hole to the center of the furthest lug hole. Measure the 6 and 8 lug distance the same way. 5 on 5 means 5 lugs 5 inches apart from the furthest lug to the starting lug. Six lug measures from center to center of the lug directly across the hub from the starting lug.
Hope this helps.

[deestrong71]

Perfect, Thanks for the Info Guys !

[72 K20]

Actually,, 5 on 5 means 5 lugs on a 5" diameter circle. The first number designates number of studs and the second is the diameter of the stud circle centerline.

[67c10rustbuket]

5 lug patterns are measured outside of one lug to center of the farthest one away, why? Because you can't measure directly across the center point. "Apart" refers to an inside edge measurement. This chart should clear it up for you.
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[deestrong71]

Awesome Info !

[71swb4x4]

I agree with Dan's post above mine, you measure from the outside of one hole or wheel stud to the center of the next when measuring a 5 bolt pattern.

[bigsnookmaster]

Originally Posted by 67c10rustbuket

5 lug patterns are measured outside of one lug to center of the farthest one away, why? Because you can't measure directly across the center point. "Apart" refers to an inside edge measurement. This chart should clear it up for you.
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X-2 This is correct!

[geezer#99]

If you have a wheel or hub that's hard to measure on a 5 lug wheel like in 67c10's chart you can use a centre of stud to centre of stud like this:
1. 2 5/8 for 5x4.5
2. 2 13/16 for 5x4.75
3. 2 15/16 for 5x5
4. 3 1/4 for 5x5.5

[Hawghauler]

I stand corrected... I went out and measured it myself, and I've been schooled. Sorry if I caused any confusion

[71swb4x4]

Originally Posted by Hawghauler

I stand corrected... I went out and measured it myself, and I've been schooled. Sorry if I caused any confusion

No need to feel bad. This is why, even when someone has already posted an answer I feel is correct, I will still post saying I agree. If we post a question on a board, and only one person answers, how are we to know if that answer is right or not? But if 5 people all post the same answer, we can be pretty sure that the answer is correct. And I have answered plenty of questions incorrectly, but people usually chime in to make that correction.

[67c10rustbuket]

It's all good, I'm wrong quite often. I blame the kids for my lack of sleep. Maybe it was all the recreational products I used years ago. Like he said we are all here to share, learn and confirming a already answered post is great idea. Posted via Mobile Device
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